The Cooperative Game Theory is a scientific discipline which offers rich mathematical apparatus for describing complex situations in the social reality. Its apparatus includes an extension to hierarchical structures and therefore can be applied to numerous research problems from the International Relations field. However, a cooperative game theoretical approach is very scarcely used. The main goal of the diploma thesis is to demonstrate, on the research problem of decision making in participation in local conflicts, the benefits of results that can be achieved by the application of the Cooperative Game Theory. In the first part of the thesis, theoretical foundations are laid and basic concepts are introduced. The second part is focused on forming a series of models of cooperative games with hierarchical structures from four local conflict situations, which are subsequently restricted in order to describe authoritative relations in structure. Restricted games are solved, the results are interpreted and evaluation of how these results can contribute to addressing the research problem follows.

The increasing global demand for critical raw minerals is increasing the demand for expansion of the mining industry, requiring quicker issuance of environmental and mining permits while maintaining sustainability standards. Social License to Operate (SLO) is crucial for gaining local support for mining projects. The EU's increased influence on member statesmineral policies through the Critical Raw Mineral Act (CRMA) could lead to local power shifts and conflicts. This study examines how CRMA affects local power dynamics and conflicts, focusing on two mining projects in Sweden to investigate the local impacts of the EU's CRMA and its effect on SLO. Using a qualitative case study approach, the study applies MacPhail et al.'s (2022) theoretical framework, focusing on process legitimacy, value compatibility, and expected distributional outcomes. The findings indicate that CRMA may negatively impact SLO and may lead to reduced power for indigenous populations and increased conflicts among stakeholders. The study highlights the need for inclusive, transparent, and fair permitting processes to secure SLO and minimize conflicts, emphasizing the importance of integrating indigenous rights and values in political decisions and permitting processes to support democratic and sustainable development in the mining industry.